Fixed AssociatedLegendreTest for GCC 4.7.3 on Ubuntu.
Fixed AssociatedLegendreTest for GCC 4.7.3 on Ubuntu.

davidsminor/cortex,hradec/cortex,lento/cortex,lento/cortex,goddardl/cortex,hradec/cortex,hradec/cortex,davidsminor/cortex,goddardl/cortex,goddardl/cortex,danieldresser/cortex,davidsminor/cortex,davidsminor/cortex,lento/cortex,danieldresser/cortex,appleseedhq/cortex,appleseedhq/cortex,appleseedhq/cortex,danieldresser/cortex,danieldresser/cortex